Introduction
Review of literature
Distribution of clerotia of selerotium cepivorum in field soil
Relationship between white rot severity and number of sclerotia of S.cepivorum in soil
Material And Methods
Experimental Results
Density of Sclerotium Cepivorum Sclerotia in soil of Assiut Governorate fields
Vertical Density of Sclerotia of S.cepivorum in certain Fields of Assiut Governorate
Relationship between Density of s.cepivorum sclerrotia in soil and Disease severity
Discussion
Summary
Literature Citied